149 results about "Critical distance" patented technology

A touch-based mobile device and a method for performing a touch lock function of the mobile device are provided. In the method, the device displays a touch lock screen in which a cover layer is superimposed over a specific underlying screen and allows the underlying screen to be visible. When an input of a touch moving gesture is detected, the device moves the cover layer depending on the touch moving gesture, and determines whether a distance of the touch moving gesture reaches a predefined critical distance. If so, the device removes the cover layer from the touch lock screen and switches the touch lock state to a touch unlock state, thus allowing a user to more conveniently switch the touch lock state to the touch unlock state.

A portable electronic system including a body and a dock is described. The body has a waterproof first connector and a first attracting portion, wherein the first connector has a plurality of electrical terminals. The dock has a second connector and a second attracting portion, wherein the second connector has a plurality of retractable pogo pins. When the body is placed on the dock to make the first connector connected to the second connector, the magnetic force between the second attracting portion and the first attracting portion makes the electrical terminals compress the retractable pogo pins to a critical distance to achieve the electrical connection between the body and the dock.

An oxygen emitter which is an electrolytic cell is disclosed. When the anode and cathode are separated by a critical distance, very small microbubbles and nanobubbles of oxygen are generated. The very small oxygen bubbles remain in suspension, forming a solution supersaturated in oxygen. A flow-through model for oxygenating flowing water is disclosed. The use of supersaturated water for enhancing the growth of plants is disclosed. Methods for applying supersaturated water to plants manually, by drip irrigation or in hydroponic culture are described. The treatment of waste water by raising the dissolved oxygen with the use of an oxygen emitter is disclosed.

The invention relates to a method for the team formation and the separation of a cooperative adaptive cruise control vehicle team. The method comprises the following steps that: S1) defining a relevant critical distance, a safe distance, team formation upper limit length and the like; S2) sending a self-vehicle state to other vehicles by a vehicle, and receiving vehicle team adding or leaving information sent from surrounding driven vehicles; S3) detecting and identifying a vehicle distance and the surrounding environment of the vehicle; and S4) analyzing the information received by each vehicle according to a self-set rule set by a control system, feeding back an execution result to a communication system, and releasing execution information to each vehicle by a communication system. Themethod formulates various self-set rules for vehicle team formation and separation, wherein the self-set rules include a rule for adding a single vehicle into the vehicle team, a rule for carrying outvehicle team formation, and a rule for separating the vehicle team into a plurality of vehicle teams. Therefore, the team formation and the separation of the cooperative adaptive cruise control vehicle team can be realized.

A method of providing golf contents in a mobile terminal is disclosed. The method includes calculating the current location of the mobile terminal and a cup distance, displaying hole information if the cup distance is greater than a first critical distance, displaying green information if the cup distance is less than or equal to the first critical distance and greater than a second critical distance, and displaying a score record screen if the cup distance is less than or equal to the second critical distance.

The invention discloses a vehicle safety anti-collision control method combining safety distance and collision time, comprising the following steps of establishing a vehicle safety distance model; establishing a vehicle safety collision time model; and performing vehicle safety anti-collision decision. According to the method of the invention, an early warning distance is divided into three critical distances, namely a critical safety distance, a critical danger distance and a critical infinitesimal distance. Different safety prevention measures are provided for different distance phases, including safe driving tips, warnings, primary braking, secondary braking and emergency braking. Not only can ride comfort reduction caused by early braking be prevented, but also vehicle collision causedby delayed braking can be avoided. The method of the invention combines a safety distance model and a collision time model, which complement each other's deficiencies. The safety collision time modelcan compensate for the recognition error of a vehicle-mounted sensor on the safety distance; the safety distance model can make up for the infinite problem of TTC calculated by the safety collision time model.

A big-data-oriented distributed density clustering method comprises the following steps that firstly, environment virtualization is performed, and a Hadoop platform is established; secondly, data are pre-processed and loaded, wherein an original data table is extracted from a database, a needed field is intercepted through a sqoop-query command, and the pre-processed data are directly extracted to an Hdfs; thirdly, a distance matrix is calculated; fourthly, a cut-off distance and dot density are calculated; fifthly, the minimum distance between a dot and a higher-density dot is calculated; sixthly, the critical distance of a critical density point and a critical density point are determined; seventhly, dot clustering is performed, so a final clustering result is obtained; eighthly, off-group points are removed. The big-data-oriented distributed density clustering method is fast and effective when a big data set is processed, and has the effect that input parameters have good robustness on the clustering result.

The invention relates to a method for automatically selecting a navigation path in a personal navigation device. The method comprises the following steps of: detecting mode switching from a driving mode to a walking mode in the personal navigation device, recording a vehicle place during mode switching from the driving mode to the walking mode, receiving a requirement of a user so as to generate a navigation instruction that the user arrives at a destination, and judging a distance from a current position to the destination; and when the distance from the current position to the destination is greater than or equal to a critical distance, providing a walking navigation instruction by the personal navigation device so as to guide the user to return to the vehicle place, and providing a driving navigation instruction by the personal navigation device so as to guide the user to arrive at the destination.

A stringed musical instrument is provided with a tremolo with a unitary base plate formed from a single folded or bent plate including a spring attachment means portion so that the tremolo is connected directly to the biasing springs; such a folded construction also includes multiple tiers stamped into the base plate portion for displacing the height of the second critical point on the intonation modules relative to the body of the instrument; the spring attachment means portion is fashioned such that the openings for anchoring the ends of the strings are aligned to openings in the base plate for threading the strings through the intonation modules. Additionally, intonation modules include alternative means for anchoring the strings located a critical distance from the second critical point essentially equal to the length of the anchoring portion or the reinforcement windings of the strings but not sufficient in length to engage the second critical point so as to render that portion of the string between the second critical point and the string anchor substantially inextensible.

Disclosed is a display apparatus including: a wireless power receiver configured to wirelessly receive power from an external power source to supply power to the display apparatus; a display configured to display an image based on a received image signal; communication circuitry configured to communicate with the external module; information acquiring circuitry configured to acquire information about a distance between the display apparatus and a user; and a controller configured to determine consumption power of the display apparatus, to control the communication circuitry to provide information about the determined consumption power to the external module, and to reduce the consumption power of the display apparatus if it is determined based on the acquired information that the user is within a predetermined critical distance of the display apparatus. Thus electromagnetic waves harmful to a human body is controlled to reduce and/or eliminate an affect a user.

The invention discloses a Fourier infrared spectrum detection device. The Fourier infrared spectrum detection device comprises a sample gas absorption cell for absorbing sample gas, an interferometer for generating an interference optical signal for the light beam which passes through the sample gas in the sample gas absorption cell, a photoelectric detector for converting the interference optical signal into a voltage signal, and a control computer for performing Fourier transform on the voltage signal to convert the interference pattern into a spectrum chart, wherein the computer is controlled to solve the concentration information of the sample gas by inversion calculation, and optical adjustment lenses are arranged in the sample gas absorption cell so as to increase the optical distance. According to the Fourier infrared spectrum detection device, the optical adjustment lenses are additionally arranged in the sample gas absorption cell so as to change the light beam propagation path and increase the length of optical distance, and sequentially, the lower detection limit of the signal concentration is increased.

The invention relates to a method for testing a vertical radiation field type of a target antenna. The method includes the steps that a critical distance is calculated; a test distance and a flight parameter of a UAV are set; the UAV is made to take a position point of the target antenna on the ground as a square center and edges of the square on the ground as a flight path to fly around the target antenna in a vertical plane; space field strength data are tested at test points on the flight path of the UAV; the critical distance and the test distance are compared, and a far-field condition test or a near-field condition test is determined; and true vertical radiation field-type figures of the target antenna in the far and near fields are calculated correspondingly. According to the methodfor testing the vertical radiation field type of the target antenna, on the one hand, test of the antenna vertical radiation field type of a device without stopping the device can be realized so thatthe operating hidden trouble of the antenna of the device can be found in time, and the protection efforts and work efficiency of air traffic control equipment in use can be improved; and on the other hand, test with distribution characteristics of long distance and upper air sounding signals are realized, and the bottleneck of ground and air test in a near area is broken.

The invention discloses a method and a device for determining a terminal measurement frequency in a cell handover, relates to the technical field of radio communication, and provides a scheme for optimizing the terminal measurement frequency, which can reduce the measurement frequency of the terminal as much as possible on the premise of ensuring the success rate of the cell handover. The method provided by the embodiment of the invention comprises acquiring a first distance from the terminal to an evolved node base (eNB) of a service cell when the terminal moves from the service cell to a target cell and when the terminal is in accordance with handover conditions for the first time; and acquiring a critical distance from the terminal to the eNB of the service cell; calculating to obtain a handover effective distance by using the difference between the critical distance and the first distance; and determining the measurement frequency of the terminal according to the handover effective distance.

The invention discloses a high bandwidth signal transmission device based on direct current carrier waves. The device comprises a local side interference suppressor, a local side modem, a terminal interference suppressor and a terminal modem; a direct current power supply line passes through the local side interference suppressor to supply power for the local side modem, the local side modem loads a network signal onto the direct current power supply line in a coupling mode, and the direct current power supply line passes through the terminal interference suppressor to supply direct current power for an external device and the terminal modem; the terminal modem extracts a loading signal transmitted by the direct current power supply line through coupling, and then the signal is sent to a signal input end of the external device through modulation-demodulation. The high bandwidth signal transmission device based on the direct current carrier waves has the advantages that the networking is simple; connection of a whole system can be achieved only by addition of local side and terminal devices in the system through direct current power line carrier waves; costs are low, and the maintenance is convenient; the transmission distance is long, and the critical distance can reach 400 meters in laboratory environment; the transmission frequency range is wider than that of a common programmable logic controller (PLC) system, and the frequency range can reach 2-68MHz.

The invention provides a generation method of a pedestrian business district based on an electronic map. The method comprises the following steps: screening nodes from the inside to the outside starting from an opportunist by sufficiently utilizing a topological structure among road nodes in the electronic map; saving nodes with distances to the opportunist less than a critical distance value in a closed table; and generating a pedestrian business district by combining an interpolation point on a critical arc section. Because the topological relationship among the road nodes is utilized, the screening process of the nodes is quickly and ordered, and the generation method has the advantages that: when nodes are added to the closed table, nodes in a start table are nodes closest to the periphery of the business district, so that the critical arc section can be found conveniently and quickly; and the method takes factors of pedestrian bridges and zebra stripes, so that the generated pedestrian district is closer to the reality, and accurate and effective information is provided to a site testing decision. The method has a smart conception, and can be used for quickly and accurately generating the pedestrian business district, so that the site testing efficiency is improved.